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Next.js trailing slash exceptions

•vibekōdo•1 min read

Got bit by the trailing slash issue on Next.js.

If we enalbed trailingSlash in next.config.js, some urls will not have a trailing slash appended.

Quote from the doc:

  • Static file URLs, such as files with extensions.
  • Any paths under .well-known/.

I have a url like this:

xcode-16.3-and-react-native-7.6

If we enalbed trailingSlash, it should become:

xcode-16.3-and-react-native-7.6/

But it does not. since it has a dot in the url, it is treated as a file. so no trailing slash is appended.

Reference:

https://nextjs.org/docs/app/api-reference/config/next-config-js/trailingSlash

https://github.com/vercel/next.js/issues/16617

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